Discount Water Filters and Air Filters at Discount Filter Store.com

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Water Filtration Systems, Filters, & Parts

Discount Filter Store carries a wide variety of water filters and filtration systems to make sure that you have clean water everywhere you need it. We offer camping water filters, RV filters, water bottles for travelers on the go. Purify your office or home’s drinking water with countertop filter systems, commercial grade filters, and whole house filter systems. Our filters are protected by our 100% Price Match Guarantee. We are happy to offer you the lowest possible price on our filters, matching any lower price listed by competitors.

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  1. 3M Aqua-Pure AP101T Whole House Water Filter

    AP101T 3M Aqua-Pure Whole House Water Filtration System

    Fits onto 3/4-inch NPT water lines Learn More
    $103.99 MSRP:  $137.99
  2. 3M Aqua-Pure AP430SS Water Heater Scale Inhibitor

    AP430SS 3M Aqua-Pure Water Heater Scale Inhibitor System

    Fits standard 3/4-inch water heater supply line. Learn More
    $70.99 MSRP:  $90.84
  3. 3M Aqua-Pure AP903 Water Filter System

    AP903 3M Aqua-Pure Water Filtration System

    Fits standard 1-inch pipe Learn More
    $239.99 MSRP:  $342.69
  4. 3M Aqua-Pure AP910R Water Filter

    AP910R 3M Aqua-Pure Replacement Filter Cartridge

    Fits the 3M Aqua-Pure AP902 Water Filtration System Learn More
    $118.99 MSRP:  $128.79
  5. CFS01S Cuno Whole House Filter Housing
  6. CFS02S Cuno Whole House Filter Housing
  7. CFS11S Cuno Whole House Filter Housing

    CFS11S Cuno Whole House Filter Housing

    $95.99 MSRP:  $101.19
  8. CFS22 Cuno Whole House Filter Housing

    CFS22 Cuno Whole House Filter Housing

    $128.99 MSRP:  $148.34
  9. HFPP-1-WPR10 Pentek Big Blue Whole House 10 inch Filter Housing
  10. HFPP-112-PR10 Pentek Big Blue Whole House 10 inch Filter Housing
  11. HFPP-34-PR-10 Pentek Big Blue Whole House 10 inch Filter Housing
  12. SLIM-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  13. SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing
  14. SLIM-CLEAR-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  15. ST-BC-4 Pentek Filter Housing - Stainless Steel

    ST-BC-4 Pentek Filter Housing - Stainless Steel

    Fits standard 2-inch water lines Learn More
    $759.05 MSRP:  $1009.11
  16. STANDARD-34-PR-10 Pentek Whole House Standard 10 inch Filter Housing
  17. STANDARD-34-WPR-10 Pentek Whole House Standard 10 inch Filter Housing
  18. STANDARD-CLEAR-34-PR10 Pentek Whole House Standard 10 inch Filter Housing
  19. VIH-34-PR10 Pentek Whole House Valve-in-Head 10 inch Filter Housing
  20. 153098 Pentek Bag Filter Sump with 3/8-inch NPT Drain (bottom)

    153098 Pentek Bag Filter Sump with 3/8-inch NPT Drain (bottom)

    Fits the cap of Pentek PBH-410 Filter Housings of any inlet or outlet size Learn More
    $82.39 MSRP:  $97.05
  21. 158008 Pentek Slim Line Filter Housing - Clear

    158008 Pentek Slim Line Water Filter Housing - Clear

    Fits standard 3/8-inch water lines Learn More
    $12.79 MSRP:  $16.55
  22. 158110 Pentek Filter Housing - Clear

    158110 Pentek Filter Housing - Clear

    Fits standard 3/8-inch water lines Learn More
    $18.99 MSRP:  $22.41
  23. 158117 Pentek Slim Line Filter Housing - Clear

    158117 Pentek Slim Line Filter Housing - Clear

    Fits standard 1/4-inch water lines Learn More
    $18.99 MSRP:  $24.14
  24. 158642 Pentek Slim Line Filter Housing - Blue

    158642 Pentek Slim Line Filter Housing - Blue

    Fits standard 3/8-inch water lines Learn More
    $19.99 MSRP:  $25.29
  25. 158643 Pentek Slim Line Filter Housing with Pressure Relief Valve - Clear

    158643 Pentek Slim Line Filter Housing with Pressure Relief Valve - Clear

    Fits standard 3/8-inch water lines Learn More
    $24.99 MSRP:  $25.98

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